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Old 05-31-2006, 09:14 PM   #1
riluve
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Grub?


So I have this new install on a rather new HD. I just reset my system after about a week of uptime and bamm - during re-boot, after the BIOS finishes, all I get on the screen is the single text word - GRUB.

OK, I mean I know what grub is, but lord - how can I troubleshoot/fix this without a fresh install?

Oddly, the system is basically responsive (ctl-atl-del works as does caps lock/num lock but nothing ever types on the screen except GRUB)

Last edited by riluve; 05-31-2006 at 09:16 PM.
 
Old 05-31-2006, 09:27 PM   #2
jdwilder
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That happened to me about a week ago, and I never figured it out. It would be nice to know what happened so that I wouldn't have to do a linux rescue the next time it occurs (The Fedora installation disks have an option called "linux rescue" which lets you mount drives and reinstall the boot loader).

(Sorry this post didn't answer your problem, but I wanted to let others know that several people are having this problem).
 
Old 05-31-2006, 09:54 PM   #3
syg00
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Probably the easiest way to fix it for distros that support rescue mode like this - Fedora and Mandrake amongst them no doubt.
Can also be fixed from the grub prompt, but requires knowing where things are.

As to why it happened - for an initial install, I'd say something was forgotten/skipped. Might be you, might be the installer code.
If this happened in normal running I'd be suspicious that something was changed - partitions moved maybe.
Other than that who knows ...
 
Old 05-31-2006, 10:51 PM   #4
riluve
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I guess this is serious now - so i did the rescue disk thingy, followed the instructions (chroot /mnt/sysimage) it looked like it worked - it found my installation, after the chroot, I could see my actual system root directory (I have a distinctive file there) . . .

Yet, after an immediate restart (per instructions), I go back to the GRUB only display.

:-/
 
Old 05-31-2006, 11:12 PM   #5
syg00
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Is this an external disk by any chance ???.
Let's see the output from "fdisk -l" (that's ell, as in list), and your grub.conf/menu.lst.
 
Old 06-01-2006, 12:24 AM   #6
riluve
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Aiight - got it, turns out I needed to re-install grub manually (grub-install /dev/sda), I kinda thought it was doing it during the "rescue".

SO any ideas why this may have happened out of the blue?
 
Old 06-01-2006, 12:53 AM   #7
jtshaw
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It is hard to say, because Grub is usually fairly good about reporting a meaningful error (or at least a meaningful error when you look at the troubleshooting part of the manual). Did you buy chance upgrade anything in between reboots?
 
  


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